The ABNF for UNO URLs is as follows (see RFCs 2234, 2396, also see
):
uno-url = "UNO:" connection ";" protocol ";" object-name
connection = descriptor
protocol = descriptor
descriptor = name *("," parameter)
name = 1*alphanum
parameter = key "=" value
key = 1*alphanum
value = *vchar
valchar = unreserved / escaped / "$" / "&" / "+" / "/" / ":" / "?" / "@"
object-name = 1*ochar
ochar = unreserved / "$" / "&" / "+" / "," / "/" / ":" / "=" / "?" / "@"
Within a descriptor, the name and the keys are case insensitive, and within
the parameter list all keys must be distinct.
Parameter values are encoded using UTF-8. Note that parsing of parameter
values as done by UnoUrl and UnoUrlDescriptor is not strict: Invalid UTF-16
entities in the input, as well as broken escape sequences ("%" not followed
by two hex digits) are copied verbatim to the output, invalid bytes in the
converted UTF-8 data are considered individual Unicode characters, and
invalid UTF-16 entities in the resulting output (e.g., a high surrogate not
followed by a low surrogate) are not detected.
